Into medium-size bowl, sift together flour and mustard. With pastry blender or 2 knives used scissor fashion, cut in margarine and half the cheese until mixture resembles coarse crumbs; stir in hot-pepper sauce. Stir in ice water until well blended. Shape dough into a ball.
Preheat over to 350F. On lightly floured surface, roll out pastry 1/8 inch thick. Sprinkle with remaining cheese; fold dough in half and roll out again to a rectangle approximately 12 inches by 8 inches. Cut pastry in half lengthwise. Cut each piece into twenty four 1/2-inch pieces. Place strips on ungreased cookie sheets. Twist; sprinkle with sesame seeds. Bake 10 to 12 minutes or until lightly browned. Serve warm.
Makes about 4 dozen pieces.
May be stored in an air-tight container in refrigerator several days or frozen. Reheat at 300F.
Cajun Country -- New Iberia, Louisiana